EN
The author analyzes disciplinary liability in the light of the legal principle of nullum crimen sine lege. Although it is not exactly a criminal liability, it is severe enough to be read on the grounds of article 42 of the Constitution of the Republic of Poland. It raises the question of the constitutional standard of this branch of law. In this article, the author compares the standards of criminal liability sensu stricto, and disciplinary liability, bearing in mind decisions and interpretation the Constitutional Tribunal.